Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '132effaea2ff48c1f93fcc2d1af29e797ec83d1b92e0c76d0927969d410cba8d' 
  AND token = 'QQaA7U3ft9QX58cHP9+wypnqs57PQqgDpjAO2GS2nak=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}